Fysica - Formules Flashcards

1
Q

Potentiële energie (2)

A
  • Epot = E.Qt.x
  • Epot = V.Qt

in Joule

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2
Q

verschil in potentiële energie (3)

A
  • -delta Epot = U.Qt
  • -delta Epot = deltaV . Qt
  • -delta Epot = -delta Ekin

in Joule

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3
Q

Elektrische potentieel (3)

A
  • V = Epot/Qt
  • V = E.x
  • V = k. Qb/x

in Volt

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4
Q

Spanning (3)

A
  • U = delta V
  • U = V1-V2 (of V2-V1)
  • U = -delta Epot/Qt

in Volt

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5
Q

Elektrische stroom (7)

A
  • I = Qtot/delta t
  • I = n|Q2|/delta t
  • I = Q/delta t
  • I = U/R
  • I = (vierkantswortel van alles) P/R
  • I = P/U
  • I = n.A.v.|Qt|
    in Ampère
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6
Q

Elektrische veldsterkte (3)

A
  • E = F/Qt
  • E = k. Qb/x²
  • E = V/x²

in Newton/Coulomb

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7
Q

Verschil in kinetische energie (2)

A
  • delta Ekin = Ekin2 - Ekin1(=0)
  • delta Ekin = Ekin2 = mv²/2

in Joule

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8
Q

Snelheid (1)

A

v = (vierkantswortel van alles)2Ekin/m

in m/s

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9
Q

Zwaartekracht (1)

A

Fz = m.g

in Newton

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10
Q

Weerstand (6)

A
  • R = U/I
  • R = Q/I².delta t
  • R = P/I²
  • R = U^2/P
  • R = Q/I^2.delta t
  • R = rho.L/A (Pouillet)

in Ohm (omega teken)

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11
Q

Wet van Ohm (1)

A

R = U/I = const

in Ohm (omega teken)

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12
Q

Geleidbaarheid (2) / conductantie

A
  • G = 1/R
  • G = I/Ur

in Siemens (S)

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13
Q

Wet van Pouillet (3)

A
  • R~I
  • R = rho . l/A (met l = L)
  • R~1/A (met A = opp vd doorsnede)
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14
Q

Formule van Joule (1)

A

Q = R.I².delta t

in Joule
(elektrische E -> warmte)

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15
Q

Vermogen (5)

A
  • P = RI²
  • P = U²/R
  • P = U.I
  • P = Everbr/delta t
  • P = Q/delta t

in Watt

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16
Q

Formules van Q (4)

A
  • R.I^2.delta t (formule van Joule)
  • m.c.delta T
  • m(w).c(w).(T2-T1)
  • P.delta t
17
Q

Formule verbruikte energie

A

Everbr = P. delta t

18
Q

Hoeveel bedraagt de warmtecapaciteit van water?

A

Cw = 4,185 .10^3 J/kg C